package com.cxwx.mybatisplusdemo.service;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.cxwx.mybatisplusdemo.dao.StudentMapper;
import com.cxwx.mybatisplusdemo.entity.Student;
import org.springframework.stereotype.Service;
import org.springframework.util.StringUtils;

@Service
public class StudentServiceImpl extends ServiceImpl<StudentMapper, Student> implements StudentService {


    @Override
    public Page getPage(String stuName, Integer pageNum) {
        Page page = new Page(pageNum, 3);
        LambdaQueryWrapper<Student> queryWrapper = new LambdaQueryWrapper<>();
        if (StringUtils.hasText(stuName)) {
            queryWrapper.like(Student::getStudentname, stuName);
        }

        queryWrapper.orderByDesc(Student::getId);


        return this.page(page, queryWrapper);
        //foobared

    }
}
